短語詞組短語Doy -bar type conveyor 凸輪式輸送機Six -bar sheets conveyor mechanism 送書六桿機搆drag bar conveyor 刮板運輸機pusher -bar conveyor 推桿式輸送器pusher bar conveyor 推桿輸送機flight bar conveyor 刮板輸送機push -bar conveyor 刮板運輸機;繙譯cross bar conveyor 橫桿運送機drag conveyor bar 刮板輸送機牽引桿 返回 bar conveyor